K9 Plus User Manual2Contents1 Preface ................................................................................... 32 Introduction ........................................................................... 52.1 PHONE D ISPLAY ...................................................................... 52.2 K EY ........................................................................................ 63 Function Menu ....................................................................... 83.1 M AIN M ENU ............................................................................. 84 Safety Information and Notices ......................................... 135 Frequently Asked Questions and Troubleshooting......... 15